It is bad.
1) Hamlet defense is boring as hell.
2) Seal drop rate is almost as low as a primal weapon.
3) Only 1 can drop from a single Hamlet and has low drop rate. Party is made of 8 ppl.
4) IF you have a static, it means you need 9*8 seals, 72 total. It means that you have to do 72 Hamlets (for no reason, lol) if the drop is 100%, but it's not, so in average you need to do 720 Hamlets to get enough seals fot your static.
(If you don't have a static, it can take an infinite amount of time, since it's not guaranteed you're getting the seal that drops)
It's like trading +72 primal wespons for this pre-req. How long does it take to get 72 primal weapons? And, come on, doing Ifrit or Moogle is nowhere as boring as doing Hamlets.
Not to mention the 25k seals key item. Why 25k seals? Just to make you seal farm for hours.
Garuda drop system was just fine. Too bad it was glitched, so nobody is doing it anymore.
I'm ok with hard content, but that's just stupid. It's far worse then moogle-pre req, or the awful drop rates we have now